CN101205702A - Beam-form unified movable mould frame - Google Patents
Beam-form unified movable mould frame Download PDFInfo
- Publication number
- CN101205702A CN101205702A CNA2007101686102A CN200710168610A CN101205702A CN 101205702 A CN101205702 A CN 101205702A CN A2007101686102 A CNA2007101686102 A CN A2007101686102A CN 200710168610 A CN200710168610 A CN 200710168610A CN 101205702 A CN101205702 A CN 101205702A
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- China
- Prior art keywords
- steel case
- bed die
- case beam
- movable mould
- mould frame
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Abstract
The invention discloses a beam-mold type movable die carrier which is large-scale construction equipment used in the construction of box beams of upper structures of bridges of railways and highways. A load-bearing beam of the movable die carrier is a special cross-section steel box, a top plate and an inner web of the movable die carrier are taken as external molds of a concrete box beam; a bottom die adopts a low height orthotropic plate structure and is opened and closed by single-side horizontal push. The beam-mold type movable die carrier is particularly suitable for construction under wide pier shaft conditions.
Description
Technical field
The present invention relates to bridge engineering superstructure case beam building technology, be specially the beam-form unified movable mould frame of the cast-in-place employing of concrete box girder.
Background technology
Mobile formwork concreting case beam technology is very extensive in the application of China.The template system of conventional mobile formwork separates with the spandrel girder system, when the via hole traveling, template system (particularly bed die system) can be divided into two at direction across bridge, and is traversing to the pier shaft width range to both sides respectively, utilizes the neutral gear of pier shaft both sides to pass through.The precondition that above-mentioned Construction Through Form on Traveler is achieved is that the pier shaft width is close with concrete case beam baseplate width.The pier shaft width is far longer than the bridge of concrete box girder baseplate width, and the via hole technology of conventional mobile formwork can not adapt to, even reluctantly for it, also increase construction cost and difficulty of construction greatly.
Summary of the invention
The objective of the invention is at above deficiency, for satisfying the construction of wide pier shaft bridge, fully the combining main body structural property provides a kind of structure simple and direct, stressed clear and definite, novel mobile formwork easy and simple to handle, multiple functional, safe and reliable.
The implementation of the object of the invention is a beam-form unified movable mould frame.Mould bases mainly by main bearing beam, nose girder, supporting arrangement, template system, bed die open-close system, move system in length and breadth and supplementary structure is formed.
Main bearing beam adopts the deformed steel case, and its top board and interior skew back web are consistent with concrete case beam outline line, therefore also have the external mold function except that load-bearing concurrently; Main bearing beam is divided into some sections manufacturings, adopts bolt to connect between sections, and the steel case is from establishing antiarch.
Nose girder becomes trussed construction by the shaped steel assembly welding.
Supporting arrangement adopts the self-locking jack, and concrete box girder deadweight and working load are born by jack during the system beam, and mould bases descends and also finishes thus.
The bed die open-close system comprises the traversing hydraulic jack of bed die, jack supporting and commutation system, jack Connection Block and messenger etc.Bed die resets behind the pier excessively to a side horizontally openable during via hole.
The system that moves in length and breadth comprises vertical shift and traversing two kinds of devices.
Supplementary structure comprises little gantry crane, walking rails and operation hanging basket.
This mobile formwork can be used for reference the original position pouring construction that is applied to equal altitudes simple supported box beam, continuous box girder.
Beam-form unified movable mould frame technical characterstic distinctness is summarized as follows:
(1) adapts to wide pier bridge construction
Successfully solved the technical barrier of mobile formwork traveling via hole under the super wide pier shaft condition.
(2) beam form unification
The mobile formwork that the beam form structure the unites two into one application that at home and abroad still belongs to the first time.
(3) low thickness bed die and drawer type folding
Bed die thickness is little, and horizontal folding can make full use of the confined space between concrete box girder and the pier top.
(4) no leg structure drops into and reduces, and operation is simplified.
(5) default camber
Girder is provided with arch, makes the concrete beam body line style better.
(6) the template condition is good
Template piece face is big, seam is few, rigidity is big, the gap is little, and hidden danger of quality such as spillage, faulting of slab ends, voids and pits greatly reduce, and is real outer beautiful in the finished product beam.
(7) rigidity big, from heavy and light
(8) the exterior sheathing operation is few
Get final product automatic demoulding by operation girder supporting jack, girder arrives design attitude, and then external mold is in place synchronously.Operations such as the artificial demoulding, template adjustment have been reduced.
(9) scope of operation is open
The open type scope of operation, and dispose movable door machine, but reinforcing bar, all integral hoistings of internal mold help shortening duty cycle.
Description of drawings
Fig. 1 mobile formwork elevation
Fig. 2 mobile formwork plan view
Fig. 3 a mobile formwork pier top profile (concreting state)
Fig. 3 b mobile formwork pier top profile (vertical shift state)
Fig. 3 c mobile formwork span centre profile (concreting state)
Fig. 3 d mobile formwork span centre profile (demoulding state)
Fig. 4 mobile formwork main bearing beam profile
Fig. 5 mobile formwork girder joint construction figure
Fig. 6 bed die structure chart
Fig. 7 a～Fig. 7 d bed die folding construction sequence figure
Fig. 8～Figure 16 Construction Through Form on Traveler block diagram
Among the figure: the 1-main bearing beam, the 2-nose girder, the 3-supporting arrangement, the 4-template system, 5-bed die open-close system, 6-moves system in length and breadth, the 7-supplementary structure.
The specific embodiment
Contrast Fig. 1, Fig. 2, mobile formwork by main bearing beam 1, nose girder 2, supporting arrangement 3, template system 4, bed die open-close system 5, move system 6 in length and breadth and supplementary structure 7 is formed.
Contrast Fig. 3 a, mobile formwork girder 1 is bearing on the Dun Ding by supporting arrangement 3.The gantry crane of supplementary structure 7 is arranged in the top of mobile formwork.
Contrast Fig. 3 b, during the mobile formwork vertical shift, bed die 4 is by bed die open-close system 5 horizontally openables, to avoid the bridge pad pinner of Dun Ding.
Contrast Fig. 3 c, during the concreting of case beam, bed die 4 usefulness suspension rods 8 are hung on girder 1; Bed die open system 5 is attached to a side of girder 1.
Contrast Fig. 3 d, during the demoulding, girder 1 descends together with bed die 4, breaks away from concrete box girder.
Contrast Fig. 4, the top board 9 of girder 1 and the web 10 of a side are in tilted layout according to the shape of concrete box girder.
Contrast Fig. 5, girder 1 is respectively made the connection between the sections, and the top board 9 and the web 10 that are used as the spandrel girder 1 of template face adopt the inner flange bolts to connect; Remaining adopts the gusset plate shear studs to connect.
Contrast Fig. 6, bed die 4 adopts the orthotropic plate of low clearance, and its both sides arrange that slideway is so that open to a side slip.
Contrast Fig. 7 a stretches out the hydraulic cylinder piston rod of bed die open-close system 5, and is connected by slide with bed die 4.
Contrast Fig. 7 b, the piston rod withdrawal with hydraulic jack drags bed die 4 to a side horizontal sliding.
Contrast Fig. 7 c, bed die is opened into a half, with hydraulic jack Rotate 180 ° and be connected with bed die 4 again.
Contrast Fig. 7 d, the hydraulic jack pushing tow continues bed die 4 to a side slip, until complete opening.
Contrast Fig. 8, mobile formwork each several part structure is mounted to integral body on support.
Contrast Fig. 9, the reinforcing bar of colligation concrete box girder is worn prestressing tendon, builds case beam concrete and maintenance.
Contrast Figure 10, the prestressing tendon of stretch-draw concrete box girder and anchoring, grouting, sealing off and covering anchorage.
Contrast Figure 11, the system 6 that moves is in length and breadth installed in the whole decline demoulding of mobile formwork.
Contrast Figure 12 starts the system 6 that moves in length and breadth, the slippage forward of traction mobile formwork.
The contrast Figure 13, the mobile formwork vertical shift to next stride construction location.
Contrast Figure 14 continues the construction of concrete box girder and finishes until all concrete box girders.
Claims (3)
1. beam-form unified movable mould frame, it is characterized in that: the main spandrel girder of mobile formwork and a part of exterior sheathing structure unite two into one, and mobile formwork master spandrel girder adopts the steel case beam of section, and the web of its top board and a side is in tilted layout, the double exterior sheathing of doing concrete box girder
Section steel case beam is respectively made between sections and connected in the following way: the case back plate that steel case beam is in tilted layout, web adopt inner flange, stress bolt to connect, and steel case beam base plate adopts gusset plate, shear studs to be connected with perpendicular web.
2. beam-form unified movable mould frame according to claim 1 is characterized in that, soffit formwork adopts the orthotropic plate of low clearance, and two ends are connected with steel case beam, and soffit formwork utilizes slideway to hang on steel case beam during unlatching, to a side horizontal slip.
3. beam-form unified movable mould frame according to claim 1 is characterized in that hydraulic jack draws pusher earlier during the bed die horizontally openable, and hydraulic jack is around its sling point Rotate 180 ° therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101686102A CN101205702A (en) | 2007-12-05 | 2007-12-05 | Beam-form unified movable mould frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101686102A CN101205702A (en) | 2007-12-05 | 2007-12-05 | Beam-form unified movable mould frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205702A true CN101205702A (en) | 2008-06-25 |
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ID=39566164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101686102A Pending CN101205702A (en) | 2007-12-05 | 2007-12-05 | Beam-form unified movable mould frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205702A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691270A (en) * | 2012-06-27 | 2012-09-26 | 中铁四局集团机电设备安装有限公司 | Efficient and quick movable mould frame |
| CN104131515A (en) * | 2014-08-20 | 2014-11-05 | 中铁十九局集团第二工程有限公司 | Method for constructing cast-in-place box beam by means of movable formwork |
| CN112695650A (en) * | 2020-12-24 | 2021-04-23 | 保利长大工程有限公司 | Downward movable formwork method construction method for shoal variable-curve wide cast-in-place beam |
| CN113073556A (en) * | 2021-03-19 | 2021-07-06 | 中铁大桥局集团第一工程有限公司 | Descending type beam mold combination movable mold frame and construction method thereof |
| CN114525737A (en) * | 2022-03-03 | 2022-05-24 | 河南大学 | Bridge deck type movable formwork via hole braking system and braking method |
-
2007
- 2007-12-05 CN CNA2007101686102A patent/CN101205702A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691270A (en) * | 2012-06-27 | 2012-09-26 | 中铁四局集团机电设备安装有限公司 | Efficient and quick movable mould frame |
| CN104131515A (en) * | 2014-08-20 | 2014-11-05 | 中铁十九局集团第二工程有限公司 | Method for constructing cast-in-place box beam by means of movable formwork |
| CN112695650A (en) * | 2020-12-24 | 2021-04-23 | 保利长大工程有限公司 | Downward movable formwork method construction method for shoal variable-curve wide cast-in-place beam |
| CN113073556A (en) * | 2021-03-19 | 2021-07-06 | 中铁大桥局集团第一工程有限公司 | Descending type beam mold combination movable mold frame and construction method thereof |
| CN113073556B (en) * | 2021-03-19 | 2023-12-22 | 中铁大桥局集团第一工程有限公司 | Construction method of movable formwork of downlink beam formwork combination |
| CN114525737A (en) * | 2022-03-03 | 2022-05-24 | 河南大学 | Bridge deck type movable formwork via hole braking system and braking method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |